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ubd: Remove unused mutex 'ubd_mutex'

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Commit fb5d1d389c ("ubd: open the backing files in ubd_add")

removed the last use of ubd_mutex.
Remove it.

Build and kernel startup test only.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20240505001508.255096-1-linux@treblig.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Dr. David Alan Gilbert 2024-05-05 01:15:08 +01:00 committed by Johannes Berg
parent 7d0a8a490a
commit 1cf855ded6
1 changed files with 0 additions and 1 deletions
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arch/um/drivers/ubd_kern.c
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@ -106,7 +106,6 @@ static inline void ubd_set_bit(__u64 bit, unsigned char *data)
#define DRIVER_NAME "uml-blkdev" #define DRIVER_NAME "uml-blkdev"
static DEFINE_MUTEX(ubd_lock); static DEFINE_MUTEX(ubd_lock);
static DEFINE_MUTEX(ubd_mutex); /* replaces BKL, might not be needed */
static int ubd_ioctl(struct block_device *bdev, blk_mode_t mode, static int ubd_ioctl(struct block_device *bdev, blk_mode_t mode,
unsigned int cmd, unsigned long arg); unsigned int cmd, unsigned long arg);